One of the frames is cut on an angle, like this. Each end is cut from the center of the top edge to one inch above the bottom left corner. Then the saw tilt is adjusted to a matching angle, and the long side is cut lengthwise one inch above the bottom edge.
Portable Cold Frame This cold frame is made in three stackable layers to make it portable. It can hold nine trays of seedlings, and includes a watering system that can be operated by a timer.
